How to Write a Literature Review: A Step-by-Step Guide

<h2>What Is a Literature Review?</h2>
<p>A literature review is a critical evaluation of existing research on your topic. Its purpose is to:</p>
<ul>
<li>Identify what is already known</li>
<li>Identify gaps, contradictions, or debates in the existing literature</li>
<li>Position your own research relative to previous work</li>
</ul>

<h2>Step 1: Define Your Scope</h2>
<p>Before you start searching, define the boundaries of your review. What time period? Which geographic regions? Which disciplines or sub-fields? Narrow scope = deeper synthesis. Broad scope = surface-level summary.</p>

<h2>Step 2: Search Systematically</h2>
<p>Use academic databases: Google Scholar, JSTOR, PubMed, Scopus, or your university library system. Use Boolean operators (AND, OR, NOT) to refine searches. Start with broad terms, then narrow down.</p>

<h2>Step 3: Evaluate Sources Critically</h2>
<p>Not all sources are equal. Ask: Is the journal peer-reviewed? Is the methodology sound? How recent is the study? Has it been cited by other scholars? A highly-cited study from a reputable journal carries more weight than an old unpublished working paper.</p>

<h2>Step 4: Take Structured Notes</h2>
<p>For each source, note: the main argument/findings, the methodology used, the theoretical framework, limitations acknowledged by the authors, and how it connects to your research question.</p>

<h2>Step 5: Identify Themes and Patterns</h2>
<p>Do not organise your review by summarising one paper at a time. Instead, identify recurring themes, debates, or methodological approaches across multiple papers and organise your review around those themes.</p>

<h2>Step 6: Synthesise, Don't Summarise</h2>
<p>The key difference between a good and a poor literature review is synthesis. Instead of "Smith (2018) found X. Jones (2020) found Y," write: "While Smith (2018) found X, subsequent research by Jones (2020) challenged this, suggesting Y — a tension that remains unresolved in the field."</p>

<h2>Common Mistakes</h2>
<ul>
<li>Including every paper you read rather than the most relevant ones</li>
<li>Failing to link the literature to your own research question</li>
<li>Not identifying the gaps that your study will address</li>
<li>Treating the literature review as a separate section rather than a foundation for your argument</li>
</ul>